First Commit

2026-05-31 10:17:09 +07:00
commit 17a9c69379
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+# IfcOpenShell - IFC toolkit and geometry engine
+# Copyright (C) 2025 Thomas Krijnen <thomas@aecgeeks.com>
+#
+# This file is part of IfcOpenShell.
+#
+# IfcOpenShell is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Lesser General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# IfcOpenShell is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with IfcOpenShell.  If not, see <http://www.gnu.org/licenses/>.
+
+from ifcopenshell import entity_instance
+
+
+def name_segments(prefix: str, layout: entity_instance) -> None:
+    """
+    Sets the IfcAlignmentSegment.Name attribute using a prefix and sequence number (e.g. "H1" for horizontal, "V1" for vertical, "C1" for cant)
+
+    :param prefix: The naming prefix
+    :param layout: The layout alignment whose segments are to be named. This should be a IfcAlignmentHorizontal, IfcAlignmentVertical or IfcAlignmentCant
+    """
+    expected_types = ["IfcAlignmentHorizontal", "IfcAlignmentVertical", "IfcAlignmentCant"]
+    if not layout.is_a() in expected_types:
+        raise TypeError(
+            f"Expected entity type to be one of {[_ for _ in expected_types]}, instead received '{layout.is_a()}"
+        )
+
+    i = 1
+    for rel in layout.IsNestedBy:
+        for segment in rel.RelatedObjects:
+            if segment.is_a("IfcAlignmentSegment"):
+                segment.Name = f"{prefix}{i}"
+                i += 1